Results for the fourth quarter and the full year of 2017 and 2016(3) are summarized below.

OVERALL RESULTS

($ in millions, exceptper share amounts)

Fourth-Quarter

Full-Year

2017

2016

Change

2017

2016

Change

Revenues

$ 13,703

$ 13,627

1%

$ 52,546

$ 52,824

(1%)

Reported Net Income(1)

12,274

775

*

21,308

7,215

*

Reported Diluted EPS(1)

2.02

0.13

*

3.52

1.17

*

Adjusted Income(2)

3,772

2,894

30%

16,085

14,761

9%

Adjusted Diluted EPS(2)

0.62

0.47

32%

2.65

2.40

11%

* Indicates calculation result is greater than 100%.

REVENUES

($ in millions)

Fourth-Quarter

Full-Year

2017

2016

% Change

2017

2016

% Change

Total

Oper.

Total

Oper.

Innovative Health

$

8,218

$

7,726

6

%

5

%

$

31,422

$

29,197

8

%

8

%

Essential Health

5,484

5,902

(7

%)

(8

%)

21,124

23,627

(11

%)

(10

%)

Total Company

$

13,703

$

13,627

1

%

—

$

52,546

$

52,824

(1

%)

—

Excluding HIS revenues from all periods:

Total Company

$

13,703

$

13,348

3

%

2

%

$

52,449

$

51,666

2

%

2

%

Essential Health

5,484

5,623

(2

%)

(3

%)

21,027

22,469

(6

%)

(6

%)

On December 22, 2017, the U.S. enacted significant changes to U.S. tax law following the passage and signing of H.R.1, “An Act to provide for reconciliation pursuant to titles II and V of the concurrent resolution on the budget for fiscal year 2018” (also known as the “Tax Cuts and Jobs Act” or the “TCJA”). The TCJA is complex and significantly changes the U.S. corporate income tax system by, among other things, reducing the Federal corporate income tax rate from 35% to 21%, transitioning U.S. international taxation from a worldwide tax system to a territorial tax system and imposing a repatriation tax that is payable over eight years on deemed repatriated accumulated earnings of foreign subsidiaries. Given the significant changes resulting from and complexities associated with the TCJA, the estimated financial impacts for fourth-quarter and full-year 2017 as well as the estimated impact on 2018 Financial Guidance for the effective tax rate on Adjusted income(2) are provisional and subject to further analysis, interpretation and clarification of the TCJA, which could result in changes to these estimates during 2018.

Acquisitions and divestitures completed in 2016 and 2017 impacted financial results in the periods presented(4). Some amounts in this press release may not add due to rounding. All percentages have been calculated using unrounded amounts. References to operational variances pertain to period-over-period growth rates that exclude the impact of foreign exchange(5).

2018 FINANCIAL GUIDANCE(6)

Pfizer’s 2018 financial guidance is presented below. Financial guidance reflects a full year contribution from Consumer Healthcare. Pfizer continues to expect that any decision regarding strategic alternatives for Consumer Healthcare will be made during 2018. Financial guidance also assumes no generic competition for Lyrica in the U.S. until June 2019, which is contingent upon a six-month patent-term extension granted by the U.S. Food and Drug Administration (FDA) for pediatric exclusivity, which the company is currently pursuing.

Revenues

$53.5 to $55.5 billion

Adjusted Cost of Sales(2) as a Percentage of Revenues

20.5% to 21.5%

Adjusted SI&A Expenses(2)

$14.0 to $15.0 billion

Adjusted R&D Expenses(2)

$7.4 to $7.9 billion

Adjusted Other (Income)/Deductions(2)

Approximately $400 million of income

Effective Tax Rate on Adjusted Income(2)

Approximately 17.0%

Adjusted Diluted EPS(2)

$2.90 to $3.00

The 2018 financial guidance for the effective tax rate on Adjusted income(2) reflects the enactment of the TCJA.

Over the next five years, Pfizer plans to invest approximately $5.0 billion in capital projects in the U.S., including the strengthening of Pfizer’s manufacturing presence in the U.S.

In fourth-quarter 2017, following the passage of the TCJA, Pfizer made a $200 million charitable contribution to the Pfizer Foundation, an organization that provides grant and investment funding to support organizations and social entrepreneurs in an effort to improve health care delivery.

Pfizer also plans to make a $500 million contribution to its U.S. pension plan in 2018.

The company also has allocated approximately $100 million for a special, one-time bonus to be paid to all non-executive Pfizer colleagues in first-quarter 2018.

During 2017, Pfizer returned $12.7 billion directly to shareholders, through a combination of:

$7.7 billion of dividends, composed of quarterly payments of $0.32 per share of common stock; and

a $5.0 billion accelerated share repurchase agreement executed in February 2017 and completed in May 2017, which resulted in a reduction of approximately 150 million shares of Pfizer’s outstanding common stock.

The full-year 2017 diluted weighted-average shares used to calculate earnings per common share was 6,058 million shares, a reduction of 100 million shares compared to full-year 2016.

In 2018, Pfizer anticipates quarterly dividend payments of $0.34 per share of common stock in addition to $5.0 billion of share repurchases.

As of January 30, 2018, Pfizer’s remaining share repurchase authorization was $16.4 billion, which includes a new $10.0 billion share repurchase program that was authorized by Pfizer’s board of directors in December 2017.

EXECUTIVE COMMENTARY

Ian Read, Chairman and Chief Executive Officer, stated, “Pfizer had a strong year in 2017, delivering solid financial results, advancing several significant pipeline programs and enhancing shareholder value with prudent capital allocation decisions. Regarding our revenue performance in 2017, Pfizer Innovative Health was driven by continued strength from several anchor brands, including Ibrance, Eliquis and Xeljanz -- all of which currently have market-leading positions with many years of patent protection remaining. Pfizer Essential Health generated strong operational revenue growth in emerging markets and in our Biosimilars portfolio but was negatively impacted by the HIS divestiture, the expected impact of product losses of exclusivity and legacy Hospira product shortages in the U.S.

“In 2017, we received ten approvals from the FDA, significantly more than Pfizer has achieved in any year in the past decade. Building on these achievements, during 2018 we look forward to important regulatory decisions and clinical data readouts across our pipeline that will drive the next wave of innovation at Pfizer.

“I believe our capital allocation decisions in 2017 enhanced shareholder value. In addition to investing in our business, we also returned $12.7 billion directly to shareholders through a combination of dividends and share repurchases and we decided to explore potential strategic alternatives for our Consumer Healthcare business. We remain on track to make this decision, which could include everything from a full or partial separation to ultimately deciding to retain the business, during 2018.

“I believe our current management and business structure, the tireless dedication of our colleagues and the strong culture we have nurtured position Pfizer especially well for continued success,” Mr. Read concluded.

Frank D’Amelio, Executive Vice President, Business Operations and Chief Financial Officer, stated, “Overall, I am pleased with our 2017 financial performance. Despite absorbing a $2.1 billion impact from products that recently lost marketing exclusivity, we were still able to achieve 1% operational revenue growth in 2017 after excluding the net impact of acquisitions and divestitures completed in 2016 and 2017. We also delivered Adjusted diluted EPS(2) growth of 11% in 2017, primarily reflecting a lower effective tax rate due to tax reform, strong performance of key products, continued success in managing our operating expenses and the net impact of our share repurchases.

“Our 2018 financial guidance at the midpoint of our ranges implies revenue growth of 4% and Adjusted diluted EPS(2) growth of 11% compared to 2017 results, which absorbs an anticipated $2.0 billion revenue headwind due to products that recently lost marketing exclusivity. Our effective tax rate on Adjusted income(2) is expected to be approximately 17.0% in 2018, significantly lower than the approximately 23.0% that we previously anticipated for full-year 2017, prior to the enactment of tax reform. Notably, our guidance for Adjusted diluted EPS(2) anticipates share repurchases totaling $5.0 billion in 2018, which is expected to be offset by approximately half due to dilution related to share-based employee compensation programs.

“Finally, regarding tax reform, I am pleased that the aspects of most importance to us were addressed in the new tax code, strengthening our ability to make capital allocation decisions that maximize patient benefit and enhance shareholder value. In addition to an anticipated effective tax rate on Adjusted income(2) in 2018 that is meaningfully lower than in prior years, Pfizer anticipates a repatriation tax liability of approximately $15 billion payable to the U.S.Treasury over eight years as a result of the passage of the TCJA,” Mr. D’Amelio concluded.

Fourth-quarter 2017 revenues totaled $13.7 billion, an increase of $75 million, or 1% compared to the prior-year quarter, reflecting the favorable impact of foreign exchange of $114 million, or 1%, offset by an operational decline of $39 million, or less than 1%.

Excluding the revenues for HIS in the prior-year quarter and the favorable impact of foreign exchange, fourth-quarter 2017 revenues increased by $240 million, or 2% operationally. Fourth-quarter 2017 revenues excluding the net impact of acquisitions and divestitures completed in 2016 and 2017 increased $137 million, or 1% operationally, compared to fourth-quarter 2016.

Innovative Health Highlights

IH revenues increased 5% operationally in fourth-quarter 2017, driven by continued growth from key brands including Eliquis globally, Xeljanz primarily in the U.S., Prevenar 13 primarily in emerging markets, as well as Lyrica, Ibrance and Chantix/Champix, all primarily in the U.S. Global revenues for Eliquis increased 43% operationally, while global Xeljanz revenues grew 47% operationally.

Prevenar 13 revenues in international markets increased 27% operationally, primarily due to the favorable overall impact of timing and increased volume associated with government purchases in certain emerging markets for the pediatric indication compared with the year-ago quarter, as well as from the inclusion of Prevenar 13 in additional national immunization programs in certain emerging markets for the adult and pediatric indications in fourth-quarter 2017.

In the U.S., Prevnar 13 revenues declined 7%, primarily due to the continued decline in revenues for the adult indication due to a smaller remaining “catch up” opportunity compared to the prior-year quarter, partially offset by increased government purchases in fourth-quarter 2017 compared to fourth-quarter 2016 for the pediatric indication.

In the U.S., Ibrance revenues increased 27% compared with the prior-year quarter, primarily due to continued strong uptake in the metastatic breast cancer setting.

Ibrance revenues in international markets declined in fourth-quarter 2017, negatively impacted by a one-time price adjustment to full-year 2017 revenues in certain developed Europe markets related to finalizing reimbursement agreements in these markets. These agreements establish pricing levels comparable to European pricing analogues for oncology products, ensure patient access and are expected to drive future growth in these markets. Despite the one-time impact in fourth-quarter 2017, underlying Ibrance volumes in developed Europe remain strong, increasing 20% sequentially compared to third-quarter 2017.

Fourth-quarter 2017 IH operational revenue growth was negatively impacted by lower revenues for Viagra in the U.S. primarily due to generic competition that began in December 2017 and for Enbrel in most developed Europe markets due to continued biosimilar competition.

Essential Health Highlights

Fourth-quarter 2017 EH revenues declined 8% operationally, of which 5% operationally was due to the February 2017 divestiture of HIS. Fourth-quarter 2017 EH revenues were also negatively impacted by an 18% operational decline from Peri-LOE Products, primarily due to expected declines in Pristiq in the U.S. as well as Lyrica in developed Europe. EH revenues were also negatively impacted by a 10% operational decline from the Sterile Injectable Pharmaceuticals (SIP) portfolio, primarily due to continued legacy Hospira product shortages in the U.S. These declines were partially offset by 72% operational growth from Biosimilars, primarily from Inflectra in the U.S. and developed Europe.

The increase in fourth-quarter 2017 other deductions––net(1) was primarily driven by higher net losses on the retirement of certain outstanding debt securities compared to the prior-year quarter. The decrease in full-year 2017 other deductions––net(1) was primarily driven by the non-recurrence of impairment charges in 2016 as a result of the HIS divestiture as well as lower other impairment charges in 2017 compared to the prior year, partially offset primarily by the aforementioned higher net losses from the retirement of certain outstanding debt securities compared with last year.

As a result of the enactment of the TCJA, Pfizer’s fourth-quarter and full-year 2017 provision for taxes on Reported income(1) was favorably impacted by approximately $10.7 billion, primarily reflecting the remeasurement of U.S. deferred tax liabilities, which includes the repatriation tax on deemed repatriated accumulated earnings of foreign subsidiaries.

Adjusted(2) Income Statement Highlights

SELECTED TOTAL COMPANY ADJUSTED COSTS AND EXPENSES(2)

($ in millions)

(Favorable)/Unfavorable

Fourth-Quarter

Full-Year

2017

2016

% Change

2017

2016

% Change

Total

Oper.

Total

Oper.

Adjusted Cost of Sales(2)

$

3,062

$

3,046

1

%

(2

%)

$

10,790

$

11,630

(7

%)

(6

%)

Percent of Revenues

22.3

%

22.4

%

N/A

N/A

20.5

%

22.0

%

N/A

N/A

Adjusted SI&A Expenses(2)

4,318

4,402

(2

%)

(3

%)

14,469

14,745

(2

%)

(2

%)

Adjusted R&D Expenses(2)

2,300

2,505

(8

%)

(9

%)

7,626

7,841

(3

%)

(3

%)

Total

$

9,679

$

9,953

(3

%)

(4

%)

$

32,885

$

34,215

(4

%)

(3

%)

Adjusted Other (Income)/Deductions––net(2)

($180

)

($182

)

(1

%)

(29

%)

($699

)

($729

)

(4

%)

(20

%)

Effective Tax Rate on Adjusted Income(2)

8.6

%

24.1

%

20.0

%

23.0

%

Pfizer’s fourth-quarter 2017 and full-year 2017 provision for taxes on Adjusted income(2) was favorably impacted due to the aforementioned enactment of the TCJA, primarily reflecting the remeasurement of U.S. deferred tax liabilities on deemed repatriated earnings of foreign subsidiaries that were accrued during 2017.

A full reconciliation of Reported(1) to Adjusted(2) financial measures and associated footnotes can be found starting on page 21 of the press release located at the hyperlink below.

FULL-YEAR REVENUE SUMMARY (Full-Year 2017 vs. Full-Year 2016)

Full-year 2017 revenues totaled $52.5 billion, a decrease of $278 million, or 1%, reflecting a slight operational decline of $20 million, or less than 1%, and the unfavorable impact of foreign exchange of $259 million, or less than 1%.

Excluding the net impact of acquisitions and divestitures completed in 2016 and 2017 and the unfavorable impact of foreign exchange, full-year 2017 revenues increased by $387 million, or 1% operationally, primarily reflecting:

Operational growth from certain key products, including Ibrance and Eliquis globally, Xeljanz primarily in the U.S., as well as Inflectra primarily in the U.S. and developed Europe; and

Total operational revenue growth in emerging markets of $1.1 billion, or 11%,

partially offset by:

Product losses of exclusivity that negatively impacted 2017 revenues by $2.1 billion operationally, primarily Enbrel in developed Europe, Pristiq and Viagra in the U.S., as well as Lyrica and Vfend in developed Europe;

Lower revenues from the SIP portfolio, primarily due to legacy Hospira product shortages in the U.S.; and

an operational decline from Prevnar 13, reflecting the expected decline in revenues for the Adult indication in the U.S.

Additionally, there was one less selling day in both U.S. and international markets during full-year 2017 compared to full-year 2016, resulting in an unfavorable impact on full-year 2017 revenues of approximately $200 million compared to the prior year.

RECENT NOTABLE DEVELOPMENTS (Since October 31, 2017)

Product Developments

Bavencio (avelumab)

In December 2017, Merck KGaA, Darmstadt, Germany, which operates its biopharmaceutical business as EMD Serono in the U.S. and Canada (Merck KGaA), and Pfizer announced that the FDA granted Breakthrough Therapy Designation (BTD) for avelumab in combination with Inlyta (axitinib) for treatment-naïve patients with advanced renal cell carcinoma (RCC). The BTD is based on the preliminary evaluation of clinical data from JAVELIN Renal 100, a global Phase 1b study assessing the safety and efficacy of avelumab in combination with Inlyta for the treatment of treatment-naïve patients with advanced RCC. BTD is designed to accelerate the development and review of potential medicines for serious conditions, and preliminary clinical evidence indicates that the therapy may demonstrate a substantial improvement over currently available therapies on one or more clinically significant endpoints. This is the second BTD granted to avelumab. In the U.S., Inlyta is approved as monotherapy for the treatment of advanced RCC after failure of one prior systemic therapy.

In November 2017, Merck KGaA and Pfizer announced that the Phase 3 JAVELIN Gastric 300 trial did not meet its primary endpoint of superior overall survival with single-agent avelumab compared with physician's choice of chemotherapy. The trial investigated avelumab as a third-line treatment for unresectable, recurrent or metastatic gastric or gastroesophageal junction adenocarcinoma patients whose disease progressed following two prior therapeutic regimens, regardless of programmed death ligand-1 (PD-L1) expression. The safety profile of avelumab was consistent with that observed in the overall JAVELIN clinical development program. The JAVELIN Gastric 300 data will be further examined in an effort to better understand these results and will also be submitted for presentation at an upcoming medical congress. The outcome of JAVELIN Gastric 300 does not have any impact on current avelumab approvals.

Bosulif (bosutinib) -- In December 2017, Pfizer announced that the FDA approved a supplemental New Drug Application (sNDA) to expand the indication for Bosulif to include adult patients with newly-diagnosed chronic phase Philadelphia chromosome-positive chronic myelogenous leukemia (Ph+ CML). The sNDA was reviewed and approved under the FDA’s Priority Review and accelerated approval programs based on molecular and cytogenetic response rates. Continued approval for this indication may be contingent upon verification and confirmation of clinical benefit in an ongoing long-term follow up trial. Bosulif was first approved in September 2012 in the U.S. for the treatment of adult patients with chronic, accelerated or blast phase Ph+ CML with resistance or intolerance to prior therapy.

Ibrance (palbociclib) -- In December 2017, Pfizer announced updated progression-free survival (PFS) results from the Phase 3 PALOMA-2 trial reinforcing the clinical benefit of Ibrance combined with letrozole. The data, which were presented at the 2017 San Antonio Breast Cancer Symposium (SABCS), demonstrated that the combination of Ibrance plus letrozole reduced the risk of disease progression by 44% and improved median PFS by more than one year compared to letrozole plus placebo (27.6 months [95% CI: 22.4, 30.3] vs. 14.5 months [95% CI: 12.3, 17.1]) when used as the initial treatment for postmenopausal women with estrogen receptor-positive, human epidermal growth factor receptor 2-negative metastatic breast cancer (HR=0.56 [95% CI: 0.46, 0.69]). This updated, post-hoc analysis included a median follow-up of more than three years, which is the longest to date of any Phase 3 study of a CDK 4/6 inhibitor. Overall survival data were not yet mature at the time of this updated PFS analysis.

Steglatro (ertugliflozin), Steglujan (ertugliflozin and sitagliptin) and Segluromet (ertugliflozin and metformin hydrochloride) -- In December 2017, Pfizer and Merck, known as MSD outside the U.S. and Canada, announced that the FDA approved Steglatro (ertugliflozin) tablets, an oral sodium-glucose cotransporter 2 (SGLT2) inhibitor, as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. The FDA also approved two fixed-dose combinations: Steglujan (ertugliflozin and sitagliptin) tablets as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus when treatment with both ertugliflozin and sitagliptin is appropriate, and Segluromet (ertugliflozin and metformin hydrochloride) tablets as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus who are not adequately controlled on a regimen containing ertugliflozin or metformin, or in patients who are already treated with both ertugliflozin and metformin. In January 2018, the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency recommended the approvals of Steglatro, Steglujan and Segluromet. The European Commission will now review the CHMP’s recommendation, with a decision expected in the first half of 2018.

Sutent (sunitinib malate) -- In November 2017, Pfizer announced that the FDA approved a new indication expanding the use of Sutent to include the adjuvant treatment of adult patients at high risk of recurrent renal cell carcinoma following nephrectomy.

Xeljanz/Xeljanz XR (tofacitinib)

In December 2017, Pfizer announced that the FDA approved Xeljanz (5 mg twice daily) and Xeljanz XR (extended release 11 mg once daily) for the treatment of adult patients with active psoriatic arthritis (PsA) who have had an inadequate response or intolerance to methotrexate or other disease-modifying antirheumatic drugs (DMARDs). Xeljanz/Xeljanz XR is the first and only Janus kinase (JAK) inhibitor approved by the FDA for both moderate to severe rheumatoid arthritis and active PsA.

In December 2017, Pfizer announced that the FDA extended the Prescription Drug User Fee Act (PDUFA) date by three months for the sNDA for Xeljanz, under review for the treatment of adult patients with moderately to severely active ulcerative colitis (UC) who have demonstrated an inadequate response, loss of response, or intolerance to corticosteroids, azathioprine, 6-mercaptopurine, or tumor necrosis factor inhibitor therapy. The FDA determined that additional review time was necessary due to information recently submitted by Pfizer. The updated PDUFA goal date for a decision by the FDA is in June 2018. The FDA has confirmed that the sNDA will be the subject of a Gastrointestinal Drugs Advisory Committee meeting that is scheduled for March 8, 2018 to discuss the efficacy and safety data as well as benefit-risk considerations of the UC sNDA.

Pipeline Developments

A comprehensive update of Pfizer’s development pipeline was published today and is now available at www.pfizer.com/science/drug-product-pipeline. It includes an overview of Pfizer’s research and a list of compounds in development with targeted indication and phase of development, as well as mechanism of action for some candidates in Phase 1 and all candidates from Phase 2 through registration.

PF-04965842 -- In December 2017, Pfizer announced the initiation of a Phase 3 program for its once-daily JAK1 inhibitor, PF-04965842, to evaluate its efficacy and safety for the treatment of moderate-to-severe atopic dermatitis (AD). This Phase 3 trial is a randomized, double-blind, placebo-controlled, parallel-group study and will evaluate 375 patients 12 years and older with moderate-to-severe AD. Trial participants will be randomly assigned to receive 200 mg once daily or 100 mg once daily or placebo. The primary endpoints are the proportion of patients achieving an Investigator Global Assessment (IGA) score of 0/1 and ≥2 point improvement, and the proportion of patients with at least a 75% or greater change from baseline in their Eczema Area and Severity Index (EASI) score. The treatment duration will be 12 weeks, the same duration as the Phase 2b study B7451006, with a 4 week safety follow-up period or the option to enter a long-term extension study at Week 12. The design of the Phase 3 trial is based on the Phase 2 results that were presented at the 26thCongress of the European Academy of Dermatology and Venereology in September 2017.

PF-05280586 (potential biosimilar to rituximab) -- In January 2018, Pfizer announced that the Phase 3 REFLECTIONS B3281006, a comparative safety and efficacy study of PF-05280586 versus MabThera®(7) (rituximab-EU), met its primary endpoint, demonstrating equivalence in overall response rate for the first-line treatment of patients with CD20-positive, low tumor burden, follicular lymphoma. PF-05280586 is being developed by Pfizer as a potential biosimilar to Rituxan® (rituximab-U.S.)/MabThera®(7).

Talazoparib (MDV3800) -- In December 2017, Pfizer announced that the Phase 3 EMBRACA trial in patients with germline (inherited) BRCA1/2-positive (gBRCA+) locally advanced and/or metastatic breast cancer demonstrated superior PFS in patients treated with talazoparib, an investigational, oral, dual-mechanism poly ADP ribose polymerase (PARP) inhibitor that is taken once daily, compared to patients who received physician’s choice standard of care chemotherapy. Median PFS was 8.6 months (95% CI: 7.2, 9.3) for patients treated with talazoparib and 5.6 months (95% CI: 4.2, 6.7) for those treated with chemotherapy [HR: 0.54 (95% CI: 0.41, 0.71), p<0.0001]. This represents a 46% reduction in the risk of disease progression. In addition, the proportion of patients achieving a complete or partial response (objective response rate) in the talazoparib group was more than twice that of the control arm (62.6% for talazoparib vs. 27.2% for chemotherapy [OR: 4.99 (95% CI: 2.9-8.8), p<0.0001]). The EMBRACA data was presented as an oral presentation at the 2017 SABCS.

Utomilumab (PF-05082566) -- In January 2018, Pfizer disclosed initial results from one arm of the Phase 1b JAVELIN Medley trial in PDx-naïve and PDx-experienced patients using concurrent dosing of utomilumab with avelumab. While the combination had a manageable safety profile, early signals of efficacy were insufficient to support advancing the utomilumab and avelumab combination into Phase 3 trials. Exploratory analyses to potentially identify patient segments that may benefit from this particular combination continue. Detailed results from this trial will be presented at a future medical meeting. The results of other ongoing studies involving utomilumab, including the triple combination of avelumab, utomilumab and PF-04518600 (OX40 agonist) in solid tumors, will further inform next steps for utomilumab.

Corporate Developments

In January 2018, the FDA upgraded the status of Pfizer’s McPherson, Kansas manufacturing facility to Voluntary Action Indicated (VAI) based on an October 2017 inspection. The change to VAI status will lift the compliance hold that the FDA placed on approval of pending applications and is an important step toward resolving the issues cited in the February 2017 FDA Warning Letter.

In January 2018, Pfizer announced its decision to end internal neuroscience discovery and early development efforts and re-allocate funding to other areas where the company has stronger scientific leadership. The company plans to create a dedicated neuroscience venture fund to support continued efforts to advance the field. The development of tanezumab and potential treatments for rare neuromuscular disorders is not impacted by this decision.

In January 2018, Pfizer and Sangamo Therapeutics, Inc. (Sangamo) announced a collaboration for the development of a potential gene therapy using zinc finger protein transcription factors (ZFP-TFs) to treat amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD) linked to mutations of the C9ORF72 gene. Under the terms of the collaboration agreement, Sangamo will receive a $12 million upfront payment from Pfizer. Sangamo will be responsible for the development of ZFP-TF candidates. Pfizer will be operationally and financially responsible for subsequent research, development, manufacturing and commercialization for the C9ORF72 ZFP-TF program and any resulting products. Sangamo is eligible to receive potential development and commercial milestone payments of up to $150 million, as well as tiered royalties on net sales.

In December 2017, Pfizer’s board of directors declared a 34-cent first-quarter 2018 dividend on the company’s common stock, representing an increase of approximately 6% compared to the company’s first-quarter 2017 dividend. The first-quarter 2018 dividend is payable March 1, 2018 to shareholders of record at the close of business on February 2, 2018. Additionally, the board of directors also authorized a new $10 billion share repurchase program to be utilized over time. This new program is in addition to the $6.4 billion remaining under the company’s current authorization.

In December 2017, Pfizer and Basilea Pharmaceutica Ltd. (Basilea) entered into an agreement whereby Pfizer will be granted the exclusive development and commercialization rights in China and several countries in the Asia Pacific region to Cresemba (isavuconazole), a novel antifungal medicine for the treatment of adult patients with diagnosed invasive aspergillosis and mucormycosis. Under the terms of the agreement, Pfizer will have exclusive rights to develop, distribute and commercialize Cresemba in sixteen Asian Pacific countries and China (including Hong Kong and Macao). These rights do not include Japan. The specific financial terms of the agreement remain confidential. The agreement is subject to customary regulatory approval. In July 2017, Pfizer completed an agreement with Basilea to obtain the exclusive commercialization rights to Cresemba in Europe (with the exception of the Nordic countries). Since that time, Pfizer has assumed responsibility for the ongoing commercialization of Cresemba in Austria, France, Germany, Italy, and the United Kingdom and successfully launched Cresemba in Spain with additional launches expected in 2018 and beyond.

In November 2017, Pfizer announced a series of leadership and organizational changes with effect from January 1, 2018, including:

John Young, formerly Group President, Pfizer Essential Health, was named Group President, Pfizer Innovative Health, reporting to Dr. Bourla; and

Angela Hwang, formerly Global President and General Manager for Pfizer Inflammation & Immunology, was named Group President, Pfizer Essential Health, reporting to Dr. Bourla, and joins the company’s Executive Leadership team.

Additional members of the Pfizer Executive Leadership team reporting to Dr. Bourla include:

(Note: If clicking on the above link does not open up a new web page, you may need to cut and paste the above URL into your browser's address bar.)

For additional details, see the associated financial schedules and product revenue tables attached to the press release located at the hyperlink referred to above and the attached disclosure notice.

(1)

Revenues is defined as revenues in accordance with U.S. generally accepted accounting principles (GAAP). Reported net income is defined as net income attributable to Pfizer Inc. in accordance with U.S. GAAP. Reported diluted earnings per share (EPS) is defined as reported diluted EPS attributable to Pfizer Inc. common shareholders in accordance with U.S. GAAP.

(2)

Adjusted income and its components and Adjusted diluted EPS are defined as reported U.S. GAAP net income(1) and its components and reported diluted EPS(1) excluding purchase accounting adjustments, acquisition-related costs, discontinued operations and certain significant items (some of which may recur, such as restructuring or legal charges, but which management does not believe are reflective of ongoing core operations), including significant changes resulting from tax legislation such as the Tax Cuts and Jobs Act (“TCJA”). Adjusted cost of sales, Adjusted selling, informational and administrative (SI&A) expenses, Adjusted research and development (R&D) expenses and Adjusted other (income)/deductions are income statement line items prepared on the same basis as, and therefore components of, the overall Adjusted income measure. As described in the “Management’s Discussion and Analysis of Financial Condition and Results of Operations––Non-GAAP Financial Measure (Adjusted Income)” section of Pfizer’s Quarterly Report on Form 10-Q for the fiscal quarter ended October 1, 2017, management uses Adjusted income, among other factors, to set performance goals and to measure the performance of the overall company. Because Adjusted income is an important internal measurement for Pfizer, management believes that investors’ understanding of our performance is enhanced by disclosing this performance measure. Pfizer reports Adjusted income, certain components of Adjusted income, and Adjusted diluted EPS in order to portray the results of the company’s major operations––the discovery, development, manufacture, marketing and sale of prescription medicines, vaccines and consumer healthcare (OTC) products––prior to considering certain income statement elements. See the accompanying reconciliations of certain GAAP Reported to Non-GAAP Adjusted information for the fourth quarter and full year of 2017 and 2016. The Adjusted income and its components and Adjusted diluted EPS measures are not, and should not be viewed as, substitutes for U.S. GAAP net income and its components and diluted EPS.

(3)

Pfizer’s fiscal year-end for international subsidiaries is November 30 while Pfizer’s fiscal year-end for U.S. subsidiaries is December 31. Therefore, Pfizer’s fourth quarter and full year for U.S. subsidiaries reflect the three and twelve months ending on December 31, 2017 and December 31, 2016 while Pfizer’s fourth quarter and full year for subsidiaries operating outside the U.S. reflect the three and twelve months ending on November 30, 2017 and November 30, 2016.

(4)

The following acquisitions and divestitures impacted financial results for the periods presented:

On December 22, 2016, Pfizer completed the acquisition of the development and commercialization rights to AstraZeneca’s small molecule anti-infective business, primarily outside the U.S. Therefore, financial results for fourth-quarter and full-year 2017 reflect contributions from certain legacy AstraZeneca anti-infective products while fourth-quarter and full-year 2016 do not include any contributions from legacy AstraZeneca anti-infective products.

On February 3, 2017, Pfizer completed the sale of its global infusion therapy net assets, Hospira Infusion Systems (HIS). Therefore, financial results for the fourth quarter of 2017 do not reflect any contribution from legacy HIS operations, while full-year 2017 reflects approximately one month of legacy HIS domestic operations and approximately two months of legacy HIS international operations(3). Financial results for fourth-quarter and full-year 2016 both reflect legacy HIS global operations, respectively.

(5)

References to operational variances in this press release pertain to period-over-period growth rates that exclude the impact of foreign exchange. The operational variances are determined by multiplying or dividing, as appropriate, the current period U.S. dollar results by the current period average foreign exchange rates and then multiplying or dividing, as appropriate, those amounts by the prior-year period average foreign exchange rates. Although exchange rate changes are part of Pfizer’s business, they are not within Pfizer’s control. Exchange rate changes, however, can mask positive or negative trends in the business; therefore, Pfizer believes presenting operational variances provides useful information in evaluating the results of its business.

(6)

The 2018 financial guidance reflects the following:

Pfizer does not provide guidance for GAAP Reported financial measures (other than Revenues) or a reconciliation of forward-looking non-GAAP financial measures to the most directly comparable GAAP Reported financial measures on a forward-looking basis because it is unable to predict with reasonable certainty the ultimate outcome of pending litigation, unusual gains and losses, acquisition-related expenses and potential future asset impairments without unreasonable effort. These items are uncertain, depend on various factors, and could have a material impact on GAAP Reported results for the guidance period.

Does not assume the completion of any business development transactions not completed as of December 31, 2017, including any one-time upfront payments associated with such transactions.

Exchange rates assumed are as of mid-January 2018.

Reflects an anticipated negative revenue impact of $2.0 billion due to recent and expected generic and biosimilar competition for certain products that have recently lost or are anticipated to soon lose patent protection. Assumes no generic competition for Lyrica in the U.S. until June 2019, which is contingent upon a six-month patent-term extension granted by the FDA for pediatric exclusivity, which the company is currently pursuing.

Reflects the anticipated favorable impact of $900 million on revenues and $0.06 on Adjusted diluted EPS(2) as a result of favorable changes in foreign exchange rates relative to the U.S. dollar compared to foreign exchange rates from 2017.

Guidance for the effective tax rate on Adjusted income(2) reflects the enactment of the TCJA.

(7)

Rituximab is marketed in the U.S. under the brand name Rituxan® and marketed in the E.U. and other regions under the brand name MabThera®. Rituxan® and MabThera® are registered trademarks of Genentech, Inc.

DISCLOSURE NOTICE: Except where otherwise noted, the information contained in this earnings release and the related attachments is as of January 30, 2018. We assume no obligation to update any forward-looking statements contained in this earnings release and the related attachments as a result of new information or future events or developments.

This earnings release and the related attachments contain forward-looking statements about our anticipated future operating and financial performance, business plans and prospects, in-line products and product candidates, including anticipated regulatory submissions, data read-outs, approvals, performance, timing of exclusivity and potential benefits of Pfizer’s products and product candidates, strategic reviews, capital allocation, business-development plans, the benefits expected from our acquisitions and other business development activities, manufacturing and product supply and plans relating to share repurchases and dividends, among other things, that involve substantial risks and uncertainties. You can identify these statements by the fact that they use future dates or use words such as “will,” “may,” “could,” “likely,” “ongoing,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” “target,” “forecast,” “goal,” “objective,” “aim” and other words and terms of similar meaning. Among the factors that could cause actual results to differ materially from past results and future plans and projected future results are the following:

the outcome of research and development activities, including, without limitation, the ability to meet anticipated pre-clinical and clinical trial commencement and completion dates, regulatory submission and approval dates, and launch dates for product candidates, as well as the possibility of unfavorable pre-clinical and clinical trial results, including unfavorable new clinical data and additional analyses of existing clinical data;

decisions by regulatory authorities regarding whether and when to approve our drug applications, which will depend on the assessment by such regulatory authorities of the benefit-risk profile suggested by the totality of the efficacy and safety information submitted; decisions by regulatory authorities regarding labeling, ingredients and other matters that could affect the availability or commercial potential of our products; and uncertainties regarding our ability to address the comments received by us from regulatory authorities such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency with respect to certain of our drug applications to the satisfaction of those authorities;

the speed with which regulatory authorizations, pricing approvals and product launches may be achieved;

the outcome of post-approval clinical trials, which could result in the loss of marketing approval for a product or changes in the labeling for, and/or increased or new concerns about the safety or efficacy of, a product that could affect its availability or commercial potential;

risks associated with preliminary, early stage or interim data, including the risk that final results of studies for which preliminary, early stage or interim data have been provided and/or additional clinical trials may be different from (including less favorable than) the preliminary, early stage or interim data results and may not support further clinical development of the applicable product candidate or indication;

the success of external business-development activities, including the ability to satisfy the conditions to closing of announced transactions in the anticipated time frame or at all or to realize the anticipated benefits of such transactions;

competitive developments, including the impact on our competitive position of new product entrants, in-line branded products, generic products, private label products, biosimilars and product candidates that treat diseases and conditions similar to those treated by our in-line drugs and drug candidates;

the implementation by the FDA and regulatory authorities in certain other countries of an abbreviated legal pathway to approve biosimilar products, which could subject our biologic products to competition from biosimilar products, with attendant competitive pressures, after the expiration of any applicable exclusivity period and patent rights;

risks related to our ability to develop and launch biosimilars, including risks associated with “at risk” launches, defined as the marketing of a product by Pfizer before the final resolution of litigation (including any appeals) brought by a third party alleging that such marketing would infringe one or more patents owned or controlled by the third party;

the ability to meet competition from generic, branded and biosimilar products after the loss or expiration of patent protection for our products or competitor products;

the ability to successfully market both new and existing products domestically and internationally;

difficulties or delays in manufacturing, including delays caused by natural events, such as hurricanes; supply shortages at our facilities; and legal or regulatory actions, such as warning letters, suspension of manufacturing, seizure of product, debarment, injunctions or voluntary recall of a product;

trade buying patterns;

the impact of existing and future legislation and regulatory provisions on product exclusivity;

the impact of any significant spending reductions or cost controls affecting Medicare, Medicaid or other publicly funded or subsidized health programs or changes in the tax treatment of employer-sponsored health insurance that may be implemented;

the impact of any U.S. healthcare reform or legislation, including any repeal, substantial modification or invalidation of some or all of the provisions of the U.S. Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act;

U.S. federal or state legislation or regulatory action and/or policy efforts affecting, among other things, pharmaceutical product pricing, reimbursement or access, including under Medicaid, Medicare and other publicly funded or subsidized health programs; patient out-of-pocket costs for medicines, manufacturer prices and/or price increases that could result in new mandatory rebates and discounts or other pricing restrictions; the importation of prescription drugs from outside the U.S. at prices that are regulated by governments of various foreign countries; restrictions on direct-to-consumer advertising; limitations on interactions with healthcare professionals; or the use of comparative effectiveness methodologies that could be implemented in a manner that focuses primarily on the cost differences and minimizes the therapeutic differences among pharmaceutical products and restricts access to innovative medicines; as well as pricing pressures for our products as a result of highly competitive insurance markets;

legislation or regulatory action in markets outside the U.S. affecting pharmaceutical product pricing, reimbursement or access, including, in particular, continued government-mandated reductions in prices and access restrictions for certain biopharmaceutical products to control costs in those markets;

the exposure of our operations outside the U.S. to possible capital and exchange controls, expropriation and other restrictive government actions, changes in intellectual property legal protections and remedies, as well as political unrest, unstable governments and legal systems and inter-governmental disputes;

claims and concerns that may arise regarding the safety or efficacy of in-line products and product candidates;

any significant breakdown, infiltration or interruption of our information technology systems and infrastructure;

legal defense costs, insurance expenses and settlement costs;

the risk of an adverse decision or settlement and the adequacy of reserves related to legal proceedings, including patent litigation, product liability and other product-related litigation, including personal injury, consumer, off-label promotion, securities, antitrust and breach of contract claims, commercial, environmental, government investigations, employment and other legal proceedings, including various means for resolving asbestos litigation, as well as tax issues;

the risk that our currently pending or future patent applications may not result in issued patents, or be granted on a timely basis, or any patent-term extensions that we seek may not be granted on a timely basis, if at all;

our ability to protect our patents and other intellectual property, both domestically and internationally;

governmental laws and regulations affecting domestic and foreign operations, including, without limitation, tax obligations and changes affecting the tax treatment by the U.S. of income earned outside the U.S. that may result from pending and possible future proposals, including further clarifications and/or interpretations of the recently passed Tax Cuts and Jobs Act;

any significant issues involving our largest wholesale distributors, which account for a substantial portion of our revenues;

the possible impact of the increased presence of counterfeit medicines in the pharmaceutical supply chain on our revenues and on patient confidence in the integrity of our medicines;

the end result of any negotiations between the U.K. government and the EU regarding the terms of the U.K.’s exit from the EU, which could have implications on our research, commercial and general business operations in the U.K. and the EU, including the approval and supply of our products;

any significant issues that may arise related to the outsourcing of certain operational and staff functions to third parties, including with regard to quality, timeliness and compliance with applicable legal requirements and industry standards;

any significant issues that may arise related to our joint ventures and other third-party business arrangements;

changes in U.S. generally accepted accounting principles;

further clarifications and/or changes in interpretations of existing laws and regulations, or changes in laws and regulations, in the U.S. and other countries;

uncertainties related to general economic, political, business, industry, regulatory and market conditions including, without limitation, uncertainties related to the impact on us, our customers, suppliers and lenders and counterparties to our foreign-exchange and interest-rate agreements of challenging global economic conditions and recent and possible future changes in global financial markets; and the related risk that our allowance for doubtful accounts may not be adequate;

any changes in business, political and economic conditions due to actual or threatened terrorist activity in the U.S. and other parts of the world, and related U.S. military action overseas;

the impact of acquisitions, divestitures, restructurings, internal reorganizations, product recalls, withdrawals and other unusual items, including our ability to realize the projected benefits of our cost-reduction and productivity initiatives and of the internal separation of our commercial operations into our current operating structure;

the risk of an impairment charge related to our intangible assets, goodwill or equity-method investments;

risks related to internal control over financial reporting;

risks and uncertainties related to our acquisitions of Hospira, Inc. (Hospira), Anacor Pharmaceuticals, Inc. (Anacor), Medivation, Inc. (Medivation) and AstraZeneca’s small molecule anti-infectives business, including, among other things, the ability to realize the anticipated benefits of those acquisitions, including the possibility that expected cost savings related to the acquisition of Hospira and accretion related to the acquisitions of Hospira, Anacor and Medivation will not be realized or will not be realized within the expected time frame; the risk that the businesses will not be integrated successfully; disruption from the transactions making it more difficult to maintain business and operational relationships; risks related to our ability to grow revenues for Xtandi and expand Xtandi into the non-metastatic castration-resistant prostate cancer setting; significant transaction costs; and unknown liabilities; and

risks and uncertainties related to our evaluation of strategic alternatives for our Consumer Healthcare business, including, among other things, the ability to realize the anticipated benefits of any strategic alternatives we may pursue for our Consumer Healthcare business, the potential for disruption to our business and diversion of management’s attention from other aspects of our business, the possibility that such strategic alternatives will not be completed on terms that are advantageous to Pfizer, the possibility that we may be unable to realize a higher value for Pfizer Consumer Healthcare through strategic alternatives and unknown liabilities.

We cannot guarantee that any forward-looking statement will be realized. Achievement of anticipated results is subject to substantial risks, uncertainties and inaccurate assumptions. Should known or unknown risks or uncertainties materialize or should underlying assumptions prove inaccurate, actual results could vary materially from past results and those anticipated, estimated or projected. Investors should bear this in mind as they consider forward-looking statements, and are cautioned not to put undue reliance on forward-looking statements. A further list and description of risks, uncertainties and other matters can be found in our Annual Report on Form 10-K for the fiscal year ended December 31, 2016 and in our subsequent reports on Form 10-Q, in each case including in the sections thereof captioned “Forward-Looking Information and Factors That May Affect Future Results” and “Item 1A. Risk Factors”, and in our subsequent reports on Form 8-K.

The operating segment information provided in this earnings release and the related attachments does not purport to represent the revenues, costs and income from continuing operations before provision for taxes on income that each of our operating segments would have recorded had each segment operated as a standalone company during the periods presented.

This earnings release may include discussion of certain clinical studies relating to various in-line products and/or product candidates. These studies typically are part of a larger body of clinical data relating to such products or product candidates, and the discussion herein should be considered in the context of the larger body of data. In addition, clinical trial data are subject to differing interpretations, and, even when we view data as sufficient to support the safety and/or effectiveness of a product candidate or a new indication for an in-line product, regulatory authorities may not share our views and may require additional data or may deny approval altogether.